Find the sum of all integers between 84 and 719 that are exactly divisible by 5
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a1=85
an=715
715=85+(n-1)5
630=5n-5
635/5=n
127=n
sn=127/2(85+715)5
sn=254000
pls mark me as a brainlist
an=715
715=85+(n-1)5
630=5n-5
635/5=n
127=n
sn=127/2(85+715)5
sn=254000
pls mark me as a brainlist
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